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EX-32.1 - EXHIBIT 32.1 - Orion Group Holdings Incorn12312016-321.htm
EX-31.2 - EXHIBIT 31.2 - Orion Group Holdings Incorn12312016-312.htm
EX-31.1 - EXHIBIT 31.1 - Orion Group Holdings Incorn12312016-311.htm
EX-23.2 - EXHIBIT 23.2 - Orion Group Holdings Incorn12312016-232.htm
EX-23.1 - EXHIBIT 23.1 - Orion Group Holdings Incorn12312016-231.htm
10-K - 10-K - Orion Group Holdings Incorn12312016.htm


Exhibit 21.1

LIST OF SUBSIDIARIES

Name of subsidiary
Jurisdiction of Formation
Effective Ownership
 
 
 
 
 
Orion Administrative Services, Inc.
Texas
Orion Marine Group, Inc.
100%
 
 
 
 
OCLP, LLC
Nevada
Orion Marine Group, Inc.
100%
 
 
 
 
OCGP, LLC
Texas
OCLP, LLC
100%
 
 
 
 
Orion Construction, LP
Texas
OCLP, LLC
99%
 
 
OCGP, LLC
1%
 
 
 
 
Orion Marine Construction, Inc.
Florida
Orion Construction, LP
100%
 
 
 
 
Orion Industrial Construction, LLC f/k/a
Louisiana
Orion Marine Group, Inc.
100%
F. Miller Construction, LLC
 
 
 
 
 
 
 
Orion Marine Contractors, Inc.
Delaware
Orion Marine Group, Inc.
100%
 
 
 
 
Northwest Marine Construction, ULC
Canada
Orion Marine Contractors, Inc.
100%
 
 
 
 
Schneider E&C Company, Inc.
Florida
Orion Marine Group, Inc.
100%
 
 
 
 
SSL South, LLC
Florida
Orion Marine Construction, Inc.
100%
 
 
 
 
Industrial Channel and Dock Company
Texas
Orion Marine Construction, Inc.
100%
 
 
 
 
Commercial Channel and Dock Company
Texas
Orion Marine Construction, Inc.
100%
 
 
 
 
East & West Jones Placement Areas, LLC
Texas
Orion Administrative Services, Inc.
100%
 
 
 
 
Kingfisher Marine Services, LLC
Texas
Orion Marine Construction, Inc.
100%
 
 
 
 
Misener Marine Construction, Inc.
Georgia
Orion Marine Construction, Inc.
100%
 
 
 
 
T. LaQuay Dredging, LLC
Texas
Orion Marine Construction, Inc.
100%
 
 
 
 
Orion Construction Australia Pty Ltd
Australia
Orion Marine Contractors, Inc.
100%
 
 
 
 
Orion Marine de Mexico, S de RL de CV
Mexico
Orion Marine Construction, Inc.
99%
 
 
Orion Administrative Services, Inc.
1%
 
 
 
 
OM Marine Services de Mexico, S de RL de CV
Mexico
SSL South, LLC
99%
 
 
Orion Industrial Construction, LLC f/k/a
1%





 
 
F. Miller Construction, LLC
 
Orion Marine Construction TCI, Ltd
Turks and Caicos
Orion Marine Construction, Inc.
100%
 
 
 
 
T.A.S. Commercial Concrete Construction
Delaware
Orion Concrete Construction, LLC
100%
 
 
 
 
T.A.S. Proco, LLC
Texas
Orion Concrete Construction, LLC
1%
 
 
T.A.S. Commercial Concrete, LLC
99%
 
 
 
 
T.A.S. Commercial Concrete Solutions, LLC
Texas
Orion Concrete Construction, LLC
100%
 
 
 
 
GLM Concrete Services, LLC
Texas
Orion Concrete Construction, LLC
49%